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APPARATUS AND METHOD FOR EXECUTING CORRELATED DOUBLE SAMPLING (CDS) AND ANALOG/DIGITAL CONVERSION (ADC) BY MULTIPLE SAMPLING IN IMAGE SENSOR
APPARATUS AND METHOD FOR EXECUTING CORRELATED DOUBLE SAMPLING (CDS) AND ANALOG/DIGITAL CONVERSION (ADC) BY MULTIPLE SAMPLING IN IMAGE SENSOR
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机译:在图像传感器中通过多次采样执行相关双采样(CDS)和模拟/数字转换(ADC)的装置和方法
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摘要
PROBLEM TO BE SOLVED: To provide a correlated double sampling (CDS) and analog/digital conversion (ADC) apparatus for an image sensor.;SOLUTION: The present apparatus includes: a sampling unit which samples N (N1) times a pixel signal outputted from a predetermined pixel in order to generate signals on which first sampling is performed within a horizontal scan period, in an image sensor; a ramp signal generator which generates a ramp signal having a ramping portion for the first sampled signals; a comparison unit which compares each of the first sampled signals with the ramping portions in order to generate comparison signals, respectively; and a code generator for generating digital codes from the comparison signals.;COPYRIGHT: (C)2008,JPO&INPIT
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